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Added segment set tool

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Furrtek
2019-08-10 01:22:07 +02:00
parent 5f518e7f52
commit c8b4cbcb45
3 changed files with 77 additions and 6 deletions
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13
tools_python/pr.py
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@@ -2,12 +2,11 @@
# 2018 furrtek - furrtek.org
# See LICENSE
def terminate_frame(frame, repeats):
# Compute whole frame's CRC16
def crc16(data):
result = 0x8408
poly = 0x8408
for by in frame:
for by in data:
result ^= by
for bi in range(0, 8):
if (result & 1):
@@ -16,8 +15,12 @@ def terminate_frame(frame, repeats):
else:
result >>= 1
frame.append(result & 255)
frame.append((result // 256) & 255)
return result
def terminate_frame(frame, repeats):
crc = crc16(frame)
frame.append(crc & 255)
frame.append((crc // 256) & 255)
frame.append(repeats & 255) # This is used by the transmitter, it's not part of the transmitted data
frame.append((repeats // 256) & 255) # This is used by the transmitter, it's not part of the transmitted data